28944073 has 16 divisors (see below), whose sum is σ = 30748032. Its totient is φ = 27216000.

The previous prime is 28944053. The next prime is 28944077. The reversal of 28944073 is 37044982.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28944073 - 2⁹ = 28943561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28944077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177490 + ... + 177652.

It is an arithmetic number, because the mean of its divisors is an integer number (1921752).

Almost surely, 2^28944073 is an apocalyptic number.

It is an amenable number.

28944073 is a deficient number, since it is larger than the sum of its proper divisors (1803959).

28944073 is a wasteful number, since it uses less digits than its factorization.

28944073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 28944073 is about 5379.9696095796. The cubic root of 28944073 is about 307.0340549390.

The spelling of 28944073 in words is "twenty-eight million, nine hundred forty-four thousand, seventy-three".